Make code compile with clang_use_chrome_plugin (part III)

xfa/fxbarcode/datamatrix/BC_EncoderContext.h

Index: xfa/fxbarcode/datamatrix/BC_EncoderContext.h
diff --git a/xfa/fxbarcode/datamatrix/BC_EncoderContext.h b/xfa/fxbarcode/datamatrix/BC_EncoderContext.h
index ddc6988dc329b086b5ba06bd026133819aabfb74..0c1c8a65475c7aa5819fd6b57969f21b25403e3b 100644
--- a/xfa/fxbarcode/datamatrix/BC_EncoderContext.h
+++ b/xfa/fxbarcode/datamatrix/BC_EncoderContext.h
@@ -17,7 +17,8 @@ class CBC_EncoderContext : public CBC_SymbolShapeHint {
   CBC_EncoderContext(const CFX_WideString msg,
                      CFX_WideString ecLevel,
                      int32_t& e);
-  virtual ~CBC_EncoderContext();
+  ~CBC_EncoderContext() override;
+
   void setSymbolShape(SymbolShapeHint shape);
   void setSizeConstraints(CBC_Dimension* minSize, CBC_Dimension* maxSize);
   CFX_WideString getMessage();